CBC.ca | Oil prices slide again to levels not seen since 2009 CBC.ca Oil is currently trading below what Mark calls the "marginal cost of supply" for many producers, so how much lower it can go is anyone's guess. Goldman Sachs made headlines last week for forecasting a WTI as low as $20 a barrel in 2016, but other ... 2 Mega-Cap Value Plays If Oil Turns Around |